Make :rtc_base_approved a public dep of :rtc_base.

webrtc/base/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 159 matching lines @@
       "logging.cc",
       "logging.h",
     ]
   }
 }
 
 static_library("rtc_base") {
   cflags = []
   cflags_cc = []
   libs = []
-  deps = [
+  deps = []
+  public_deps = [
     ":rtc_base_approved",
   ]
 
   configs += [
     "..:common_config",
     ":rtc_base_config",
   ]
 
   public_configs = [
     "..:common_inherited_config",
@@ skipping 439 matching lines @@
       "objc/NSString+StdString.mm",
       "objc/RTCCameraPreviewView.h",
       "objc/RTCCameraPreviewView.m",
       "objc/RTCDispatcher.h",
       "objc/RTCDispatcher.m",
       "objc/RTCLogging.h",
       "objc/RTCLogging.mm",
     ]
   }
 }